Ian Robertson, Special to QMI Agency

A German soldier dies silently as a World War II spy trained near Oshawa quickly and efficiently slits his throat.

A trainee is killed while crawling under barbed wire during a live ammunition exercise.

Recreated by a Canadian cast, such scenes — which viewers can see July 14 at 9 p.m. EST, July 15 at 3 p.m. or July 19 at 7 p.m. EST EST when History channel airs Camp X: Secret Agent School — echo the grim realities of agents who risked their lives while preparing to destroy enemy power plants and bridges.

“We’re always looking for stories that are fresh and dramatic,” said script co-author Elliott Halpern, owner-producer of Toronto’s Yap films.

If Camp X had been in the U.S., it “wouldn't have been bulldozed," he said.

Despite being the foundation of modern North American spy training, surviving structures were razed in 1969.